US 9,050,637 B2 · Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled

Abstract

A roll mill for rolling a product has a roll stand with working rolls and a control device. The product has a head part and is moved towards the stand at a product head part speed. The working rolls form a rolling gap. The control device controls the stand such that, before the product head part enters the gap, the rolls are rotated at a peripheral speed which is essentially the same as the product head part speed; the gap is vertically adjusted to essentially a product head part thickness, on the feeding side, before the product enters the gap; and, during or following the insertion of the product into the gap, the gap is closed to a pre-determined value, and the peripheral speed of the working rolls is modified, especially increased, according to the gap, essentially at the same time as the closing of the gap.

Claims10

Dependent claims

An operating method for introducing a rolling stock to be threaded into a roll stand of a rolling mill wherein the rolling mill has a roll stand with working rolls and a control device, the method comprising:

moving a head of the rolling stock to be threaded toward the roll stand at a rolling stock head speed, wherein the working rolls form a rolling gap,
before the head of the rolling stock to be threaded enters the rolling gap:
rotating the working rolls at a circumferential speed that is essentially equal to the speed of the head of the rolling stock, and
setting the rolling gap in the vertical direction essentially to a thickness of the head of the rolling stock on the inlet side, and
when or after the head of the rolling stock enters the rolling gap, closing the rolling gap to a predetermined value and, essentially at the same time as the closing of the rolling gap, changing the circumferential speed of the working rolls based on the rolling gap.

2 more elements

Dependencies are inferred from the claim text.

Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled

Life of this patent

Operating method for introducing a product to be rolled into a roll stand of a roll mill, control device, data carrier, and roll mill for rolling a strip-type product to be rolled

Life of this patent

Abstract

Claims10